TEF6890H datasheet(38/55 Pages) PHILIPS

部件名	TEF6890H

功能描述	Car radio integrated signal processor

Download	55 Pages

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制造商	PHILIPS [NXP Semiconductors]

网页	http://www.nxp.com

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38 / 55 page

2003 Oct 21

38

Philips Semiconductors

Product speciﬁcation

Car radio integrated signal processor

TEF6890H

Table 45 Description of data byte CH, see Figs 16 to 19

Table 46 Loudness gain

BIT

SYMBOL

DESCRIPTION

7

−

Not used. Set to logic 0.

6 to 2

LDN[4:0]

Loudness gain. See Table 46.

1

LLF

Loudness low boost frequency. 0 = 50 Hz; 1 = 100 Hz.

0

LHB

Loudness high boost enable. 0 = loudness low boost is enabled; 1 = loudness low

boost and loudness high boost are enabled.

LDN4

LDN3

LDN2

LDN1

LDN0

LOUDNESS CONTROL (dB)

00000

0

00001

−1

00010

−2

:::::

:

10010

−18

10011

−19

10100

−20

handbook, full pagewidth

−24

−20

−16

−12

−8

−4

−22

−18

−14

−10

−6

−2

6

4

2

0

MHC343

10

Gloudness

(dB)

faudio (Hz)

102

103

104

105

Fig.16 Loudness gain Gloudness as a function of audio frequency faudio;

low boost frequency 50 Hz and high boost on.

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